ISDN full form, what is the full form of ISDN

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ISDN full form, what is the full form of ISDN
ISDN full form, what is the full form of ISDN
ISDN full form, What is the full form of ISDN
The full form of ISDN is Integrated Services Digital Network.

Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network. It was first defined in 1988 in the CCITT "Red Book".